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64 linhas
1.5 KiB
64 linhas
1.5 KiB
// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include <cstdio>
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#include "leveldb/dumpfile.h"
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#include "leveldb/env.h"
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#include "leveldb/status.h"
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namespace leveldb {
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namespace {
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class StdoutPrinter : public WritableFile {
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public:
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Status Append(const Slice& data) override {
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fwrite(data.data(), 1, data.size(), stdout);
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return Status::OK();
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}
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Status Close() override { return Status::OK(); }
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Status Flush() override { return Status::OK(); }
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Status Sync() override { return Status::OK(); }
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};
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bool HandleDumpCommand(Env* env, char** files, int num) {
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StdoutPrinter printer;
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bool ok = true;
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for (int i = 0; i < num; i++) {
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Status s = DumpFile(env, files[i], &printer);
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if (!s.ok()) {
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std::fprintf(stderr, "%s\n", s.ToString().c_str());
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ok = false;
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}
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}
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return ok;
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}
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} // namespace
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} // namespace leveldb
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static void Usage() {
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std::fprintf(
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stderr,
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"Usage: leveldbutil command...\n"
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" dump files... -- dump contents of specified files\n");
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}
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int main(int argc, char** argv) {
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leveldb::Env* env = leveldb::Env::Default();
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bool ok = true;
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if (argc < 2) {
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Usage();
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ok = false;
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} else {
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std::string command = argv[1];
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if (command == "dump") {
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ok = leveldb::HandleDumpCommand(env, argv + 2, argc - 2);
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} else {
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Usage();
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ok = false;
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}
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}
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return (ok ? 0 : 1);
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}
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